From 317fa41b47da63730145e336c9ef47c62b78ee4f Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 2 May 2025 13:40:56 -0700 Subject: [PATCH] perf trace: Show zero value in STRARRAY The STRARRAY macro is to print values in a pre-defined array. But sometimes it hides the value because it's 0. The value of 0 can have a meaning in this case so set 'show_zero' field. For example, it can show CREATE_MAP cmd in the bpf syscall. Acked-by: Howard Chu Link: https://lore.kernel.org/r/20250502204056.973977-1-namhyung@kernel.org Signed-off-by: Namhyung Kim --- tools/perf/builtin-trace.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index bf9b5d0630d3..61650be8fccd 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1124,12 +1124,14 @@ static bool syscall_arg__strtoul_btf_type(char *bf __maybe_unused, size_t size _ #define STRARRAY(name, array) \ { .scnprintf = SCA_STRARRAY, \ .strtoul = STUL_STRARRAY, \ - .parm = &strarray__##array, } + .parm = &strarray__##array, \ + .show_zero = true, } #define STRARRAY_FLAGS(name, array) \ { .scnprintf = SCA_STRARRAY_FLAGS, \ .strtoul = STUL_STRARRAY_FLAGS, \ - .parm = &strarray__##array, } + .parm = &strarray__##array, \ + .show_zero = true, } #include "trace/beauty/eventfd.c" #include "trace/beauty/futex_op.c" -- 2.25.1